Stron Interactions in Non-equilibrium systems

Add to your list(s) Download to your calendar using vCal

• Dr Hakan Tureci (Swiss Federal Institute of Technology, Zurich)
• Monday 28 January 2008, 15:30-16:30
• HEP Seminar Room (980) Rutherford Building, Cavendish Laboratory.

If you have a question about this talk, please contact pjh65.

With the recent advances in nanofabrication capabilities, new micro- and nano-laser systems have emerged, such as microcavity lasers, random lasers and polaritonic lasers. These systems are characterized in certain operational regimes by complex modal structure and strong mode-mode interactions, highlighting the inadequacies of current theory. In this talk, I will discuss theoretical tools that we have developed to treat strong mode-mode interactions in non-equilibrium systems by accessing directly the steady state. After touching on some of the controversy in the past decade on lasing in weakly disordered lasing media (“diffusive random lasers”), I will show that in these systems, lasing dynamics is dominated by strong non-linear interactions between modes. Minute spatial fluctuations in the pump power are found to lead to large fluctuations in the steady-state lasing intensities, while the lasing frequencies remain surprisingly immune, in agreement with recent experiments.

This talk is part of the AMOP list series.

This talk is included in these lists:

• AMOP list
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• HEP Seminar Room (980) Rutherford Building, Cavendish Laboratory
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Thin Film Magnetic Talks

Note that ex-directory lists are not shown.